Acyl-glycerols like fats and oils are esters formed by condensation reaction between:
Correct answer: B. Fatty acids and alcohols
- A. Fatty acids and water
- B. Fatty acids and alcohols
- C. Fatty acids and glucose
- D. Fatty acids and phosphates
Explanation
Acyl-glycerols, such as fats and oils, are esters formed by a condensation reaction between fatty acids and alcohols. This process involves a glycerol molecule, which is a type of alcohol, reacting with three fatty acid molecules to form a triglyceride. Option A is incorrect because water is a byproduct, not a reactant, in this reaction. Option C is incorrect because glucose, a carbohydrate, is not involved in esterification. Option D is incorrect as phosphates are related to phospholipids formation, not acyl-glycerols.
This question appeared on the UHS MDCAT 2013 paper, which you can sit online with every answer explained.
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About Lipids
Lipids include fats, oils, waxes, phospholipids and steroids, which are largely insoluble in water and soluble in organic solvents. Coverage includes glycerol and fatty acids, ester bond formation, saturated and unsaturated fats, triglyceride functions, and phospholipids in cell membranes.
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